Source processes of the thermal waters from the Phlegraean Fields (Naples, Italy) by means of the study of selected minor and trace elements distribution

Valentino, G.M.; Stanzione, D.

doi:10.1016/s0009-2541(02)00196-1

Cited by 68 publications

(15 citation statements)

References 56 publications

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“…One example of this is the Conca d'Agnano discharge point which releases a mix of water from Agnano lake (i.e., thermal) and municipal wastewaters. Sewage discharge might also contain As-enriched groundwaters due to gas-water-rock interactions inside the aquifer [57,60]. The diffusion of arsenic in the bay was found to be influenced by the wave hydrodynamics, suggesting that arsenic dispersion in sediments might be attributed to various sources (anthropic, natural, or "mixed") and further diffused due to the particular marine dynamics in the Bagnoli Bay.…”

Section: Discussionmentioning

confidence: 99%

“…It is also worth noting that these springs were in the proximity of discharge points (e.g., Thermal Springs 5 and 6 which are close to the "Conca d'Agnano", Discharge 2, or Thermal springs 12 and 13, which are close to Discharges 8 and 9, shown in Figure 3). All these drains are likely to be affected by groundwater and thermal water infiltrations which may possibly contain As [57].…”

Section: Factors Vs Thermal Springsmentioning

confidence: 99%

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Source Apportionment Assessment of Marine Sediment Contamination in a Post-Industrial Area (Bagnoli, Naples)

Giglioli

Colombo

Contestabile

et al. 2020

Water

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The area of Bagnoli (Gulf of Naples, central Tyrrhenian Sea) has been heavily exposed to pollution for over a century due to the presence of industrial sites along its coastline. The aim of this study is to analyze contaminant concentrations (i.e., heavy metals and hydrocarbons) in seabed sediments through a statistical multivariate approach. Multivariate methods permit us to describe the pollution dynamics affecting the area and distinguish between anthropogenic and natural pollution sources. Additionally, the association between contamination patterns and the wave climate characteristics of the gulf (i.e., wave period, direction, height, power, and energy) is investigated. The study confirms that the main contamination source in the Bagnoli bay is anthropogenic activities (i.e., former steel plant and sewage discharges) for the majority of investigated pollutants. It also provides evidence, however, for the potential co-existence of multiple anthropogenic and geogenic sources of arsenic and other metals that may be originating also from the water-rock interaction and submarine volcanic emissions in the Phlegraean area.

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Section: Discussionmentioning

confidence: 99%

Section: Factors Vs Thermal Springsmentioning

confidence: 99%

Source Apportionment Assessment of Marine Sediment Contamination in a Post-Industrial Area (Bagnoli, Naples)

Giglioli

Colombo

Contestabile

et al. 2020

Water

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“…This hot spring is characterized by the presence of a main bubbling mud pool with temperatures up to 80-85 • C and marginal water-poorer portions with lower temperature (Piochi et al, 2019). The levels of arsenic are included in the 10-15 ppm range in the mud and in the 39-2,000 µg/L range in waters reaching up to 6,000 µg/L in nearby zones (Valentino and Stanzione, 2003). The samples were aseptically collected close to the marginal water-poorer portion (Figures 1B,C) where the temperature and the pH were ∼55 • C and 5.0, respectively.…”

Section: Study Of the Area And Samplingmentioning

confidence: 99%

“…Pisciarelli was selected as the ideal isolation site because, as known for other volcanic areas, it is characterized by aggressive sulfurous effluxes and significant concentration of certain elements such as arsenic and mercury over 50 ppm (Valentino and Stanzione, 2003;Piochi et al, 2019). It has been shown that sampling in acid-sulfidic geothermal systems can give insight into the effects of microbial communities on arsenic and sulfur biogeochemical cycles and increase the knowledge on the relationship between arsenic resistance and sulfur cycling (Hug et al, 2014).…”

Section: Site Description Sampling and Identification Of A New Strain Of Alicyclobacillusmentioning

confidence: 99%

“…It displays an impressive and powerful hydrothermal activity with a puzzling of various hot and acidic environments (Baquero et al, 2020) induced by fumaroles at temperature up to ∼110 • C, vigorous boiling pools and diffuse soil degassing. From year 2006, these conditions have been continuously changing and increasing, due to the effect of the endogenous engine and the meteoric agents (Valentino and Stanzione, 2003;Chiodini et al, 2010;Piochi et al, 2015Piochi et al, , 2019Cardellini et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Genomic Insight of Alicyclobacillus mali FL18 Isolated From an Arsenic-Rich Hot Spring

et al. 2021

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Extreme environments are excellent places to find microorganisms capable of tolerating extreme temperature, pH, salinity pressure, and elevated concentration of heavy metals and other toxic compounds. In the last decades, extremophilic microorganisms have been extensively studied since they can be applied in several fields of biotechnology along with their enzymes. In this context, the characterization of heavy metal resistance determinants in thermophilic microorganisms is the starting point for the development of new biosystems and bioprocesses for environmental monitoring and remediation. This work focuses on the isolation and the genomic exploration of a new arsenic-tolerant microorganism, classified as Alicyclobacillus mali FL18. The bacterium was isolated from a hot mud pool of the solfataric terrains in Pisciarelli, a well-known hydrothermally active zone of the Campi Flegrei volcano near Naples in Italy. A. mali FL18 showed a good tolerance to arsenite (MIC value of 41 mM), as well as to other metals such as nickel (MIC 30 mM), cobalt, and mercury (MIC 3 mM and 17 μM, respectively). Signatures of arsenic resistance genes (one arsenate reductase, one arsenite methyltransferase, and several arsenite exporters) were found interspersed in the genome as well as several multidrug resistance efflux transporters that could be involved in the export of drugs and heavy metal ions. Moreover, the strain showed a high resistance to bacitracin and ciprofloxacin, suggesting that the extreme environment has positively selected multiple resistances to different toxic compounds. This work provides, for the first time, insights into the heavy metal tolerance and antibiotic susceptibility of an Alicyclobacillus strain and highlights its putative molecular determinants.

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Occurrence and Behaviour of Main Inorganic Pollutants in European Groundwater

Helvoort

Griffioen

Edmunds

2009

Groundwater Monitoring

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Source processes of the thermal waters from the Phlegraean Fields (Naples, Italy) by means of the study of selected minor and trace elements distribution

Cited by 68 publications

References 56 publications

Source Apportionment Assessment of Marine Sediment Contamination in a Post-Industrial Area (Bagnoli, Naples)

Source Apportionment Assessment of Marine Sediment Contamination in a Post-Industrial Area (Bagnoli, Naples)

Genomic Insight of Alicyclobacillus mali FL18 Isolated From an Arsenic-Rich Hot Spring

Occurrence and Behaviour of Main Inorganic Pollutants in European Groundwater

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